package com.ng.sys.service;

import java.util.List;
import java.util.Optional;

import com.ng.sys.model.domain.User;


public interface IUser {
	public User getById(String id);
	
	public List<User> list(User param);
	
	public boolean delete(String id);
	
	public Optional<User> findUserByUsername(String username);
}
